Spring compressing and assembling device.



W. N. TITUS, JR. SPRING GOMPRESSING AND ASSEMBLING DEVICE.

APPLICATION FILED MAY 15, 1911.

Patented May 21, 1912.

" edf WILLIAM N. TITUS, JR., F WATEBTOWN, MASSACHUSETTS.

SPRING COMPBESSING AND `ASSIEMBLILBI'IG- DEVICE. i

Specification of Letters Patent.

Application med may 15,1911. semimszzwf To all whom 'it may concern.' p7 Be it known that I, WILLIAM N. Ti'rus,

Jr., a citizen of the United States, and resi dent of Watertown, countyof Middlesex, and State of Massachusetts, have invented an Improvementin Spring Compressing and Assembling Devices, of which the followingdescription, in connection with the accompanying drawings, ,is' aspecification, like letters on the drawings. representing like parts. y

In assembling the valve parts of gasolene or like engines after thesehave been taken 'apart for cleaning or renewal of broken parts, it is amatter of considerable diiculty to compress land hold in a state ofcompression the stii spiral springs which control the valves,'as isnecessary for rei 'placing the springs in operative relation to thevalves. y

The purpose of the present invention is to provide a compact andconveniently operable device for quickly compressing a spring to theextent desired, and coperatve therewith, means for then holding thespring compressed and permitting'it to be reassembled with the valve,before the holdingl means is released. i To this end the inventionconsists of a device composed of relatively slidable members'carryingplates to compress the valve between them, with means for automaticallyholding such relatively slidable members-in the position to which theyare` yforced .in compressing the sprin and in conjunction therewith,clamping evices adapted to be enga ed over the ends of thespring whilethus eld compressed to hold thev same after the compressing elements arereleased.

.The invention will be more f'ullyi understood from thefollowing'detailed description taken in connection with the accoml acentral vertical section thigough y 'compressing elements, a spring beins own panyin drawings and will thereafter be pointe out inthe 'ap endedclaims.

relis Referring to the e s ring rawings: Fi

with the spring. Fig. 3 is an end view taken in section on line 3;-3 ofFig.l 2. Fig. 4 is an end view of the releasing nut. f u

Arod or bar 1 is threads 2 at one end or engagement by a hand nut 3 forslidably adjusting on said bar across plate 4. adapted to press againstone side of the spring. The bar 1 maybe in any desired crosssection,vbut is ably angular vso that the parts s idable thereon may befitted thereto'` and held from turning movement.- As shown, this bar' ishexagonal this being a forni especially adapted for use wit ordinarvalve constructions. .The bar 1 as s idably fitted thereto ay relativelyheavy sleeve 5 formed at one end with'a cross plate 6 coratenteamays'i,191e. l

Provided with screw refertypes of o erative with the plate 4 forcompressing iece 11. The outer A pair of clamps 16 are provided toengage 80 the s rin as compressed between the plates 4 an 6, t eseclamps having fixed beaks 17 at one end for engagement over one end ofthe spring and slidable beaks 18 adjustable to engage the other end ofthe spring as by knurled nuts threaded on the clamps. 'The' slidablebeaks 18 are held from turning so as topaline with the beaks 17. by akey way and pin connect-ion 20.

drawn out of the sleeve 5, a spring 21 shown as 'provided with a usualwasher disk 22` which is to be assembled with the valve, is slipped overthe bar to rest` on the late 4.

xed abutbe instantly com 100 In operation, the bar 1 having been 912%.The bar is then slid up into the s e'eve 5 DE pressed to the extentesired and is held so compressed by the pawl 7 snappin into `engagementwith a tooth 10. Whi e the spring is thus compressed, the clamps 16 areengaged with the sides thereof, as shown in Figs. 2 and 3, and theslidable beaks 18 adjusted up by the nuts 19 so 'that the spring 1sgripped thereby.- The pressure of the spruig 1s, of course, at this timewithstood by the engagement of the pawl 7 with a tooth 10 so that thispawl could not readily be disengaged by pressing on the thum piece 11.By now turning the releasing nut 3 a small amount in the properdirection, the pressure of the spring is transferred from the plates 4,6 to the clamp 16 so that the pressure beingl taken oi from the pawl 7,it can be easily disengaged from the ratchet tooth and the bar 1 maythen be withdrawn from the sleeve 5, leaving the spring valve. Thisprovision of an instantly operable spring compressor along'with thesecondary releasing means, illustrated herein as the releasing nut 3 inconjunction with the secondary or holding clamps'lt coperative assefforth, is of much practical tating valve assemblingand replacing, for

example, enabling automobile engines to be repaired on the road andreassembled without loss of timewhile the outfit is compact,l p Ivablewith such ratchet teeth.

simple and inexpensive.

Having described my invention, what I claim as new-and direto secure byLet ters Patent is: 1. A device of the kind described, comprisingmembers mounted one in relation to the other for guided free slidingmovement, one of said members having a handle,

adapted to impart thrusts in the axial line of the device and the othermember 'being adapted to engage an abutment ina many ner to resistthrusts along said axial line,

andboth of said members extendin to o posite sides of the axis of thedevice su ciently to permit a spring to be symmetrii as cally disposedabout said axis and be engaged when compressed by each of the members onopposite sides of the axis, and means for detachably holding saidmembers interengaged at will to 'maintain a spring under compression.

2. A device of the kind described, comprising vmembers mounted one inrelation to the other for guided free sliding movement, one of saidmembers having a handle adapted to impart thrusts in the axial line ofthe device and the other member being adapted to engage an abutment in amanner to resist thrusts along said axial line, and both of said membersextending to opposite sides of the axis of the device suiiiciently topermita spring to be s mmetrically disposed about said axis an beengaged when compressed by each of the members on opposite sides of theaxis, said members being formed to engage the spring at opposite heldrbythe lclamps 16 at its sidesV only, and thus free to be assembled withthe im' portance 1n the saving of time and facili,

sides and to leave intermediate opposite side portions free andunobstructed so that holding clamps may be applied thereto, and meansfor detachably holding said members interengaged at will to maintain aspring under compression.

3. A device'of the kind described, comprising members mounted one inrelation to the other for 'ded free sliding movement, one of saidmegubers having a handle adapted to impart thrusts in the axial line ofthe device and the other member being adapted to engage ah abutment in amanner to -resist thrusts along said axial line, and both of Saidmembers extending to opposite sides of the axis of the devicesufficiently to permit a spring to be s mmetrically disposed aboutsaidlaxis and e engaged when comvpressed byeach of the members on opposite.sidesof the'axis, said membersbeing formed to engage lthe spring atopposite sides and to leave intermediate opposite side portions free andunobstructed lso that holding clam s may be applied thereto, and means 5in said members interfor etachably hol engaged at-w1ll to maintain aspring under compression, said' means ,consisting of ratchet teeth onone of said members and a awl on the other of said members engageone ofsaid members having a handle adapted' to impart thrusts in the axialline of the device and the other member being adapted to engage anabutment in a manner to re-l asist t rusts along said axial line, andboth `of said members extending to opposite sides of the axis lof thedevice sufficiently to permit a spring to be symmetrically disposed asfabout said axis and be engaged when com# I pressed by each of themembers on o posite i sides of the axis, said members being ormed toengage the spring at opposite sides and to leave intermediate `o positeside portions free. and unobstructed so that holding clamps may beapplied thereto, and means for detachably holding said membersinterengaged at will to maintain a spring under compression, said meansconsisting of ratchet teeth on one of said members and a pawl onthe-other of said members engageable with such ratchet teeth, one ofsaid members having a further provision for a lengthening adjustment ofits operative portion relative to the other member without disturbingthe interengaging hold between the members.

5. A device of the kind described, oomprising relatively slidablemembers formed to clamp between them a spring to be compressed with thespring engaged so as to h ave like pressures exerted thereon at/opposite sides and with opposite exposed portions to receive holdingclamps, a pawl and In testimony whereof, I have signed my ratchetlocking connect-ion between said name to this specification, in thepresence of members to hold the same with the spring two subscribinwitnesses.

compressed as desired, and separate means VILLIAM N. TITUS, JR. 5 forreleasing said members to permit the Witnesses:

pawl and ratchet locking means to be dis- HARRY E. HAIL, engaged. CLYDEL. Rooms.

